removed debug colors
Fix ios6 deprecation warnings
fixes issue #21

this fixes the issue where a landscape croparea did work. thanks
@ziweizhou for fixing this!
Merge pull request #20 from cygnl7/dev/ios6

Fix ios6 deprecation warnings
Fixed a memory leak with colorSpace
Merge pull request #26 from DinosaurDad/master

The gradient memory leak was previously fixed, but colorSpace was still leaking.
issue #12 fixed.